yangzheli
59c4a3f0a4
* feat(agent): add update_agent tool for in-chat custom-agent self-updates (#2616) Custom agents had no built-in way to persist updates to their own SOUL.md / config.yaml from a normal chat — `setup_agent` was only bound during the bootstrap flow, so when the user asked the agent to refine its description or personality, the agent would shell out via bash/write_file and the edits landed in a temporary sandbox/tool workspace instead of `{base_dir}/agents/{agent_name}/`. Changes: - New `update_agent` builtin tool with partial-update semantics (only the fields you pass are written) and atomic temp-file + os.replace writes so a failed update never corrupts existing SOUL.md / config.yaml. - Lead agent now binds `update_agent` in the non-bootstrap path whenever `agent_name` is set in the runtime context. Default agent (no agent_name) and bootstrap flow are unchanged. - New `<self_update>` system-prompt section is injected for custom agents, instructing them to use `update_agent` — and explicitly NOT bash / write_file — to persist self-updates. - Tests: 11 new cases in `tests/test_update_agent_tool.py` covering validation (missing/invalid agent_name, unknown agent, no fields), partial updates (soul-only, description-only, skills=[] vs omitted), no-op detection, atomic-write safety, and AgentConfig round-tripping; plus 2 new cases in `tests/test_lead_agent_prompt.py` covering the self-update prompt section. - Docs: updated backend/CLAUDE.md builtin tools list and tools.mdx (en/zh) with the new tool description. * feat(agent): isolate custom agents per user Store custom agent definitions under the effective user, keep legacy agents readable until migration, and cover API/tool/migration behavior with tests. Co-authored-by: Cursor <cursoragent@cursor.com> * feat: consistent write/delete targets & add --user-id to migration --------- Co-authored-by: Cursor <cursoragent@cursor.com>
DeerFlow Frontend
Like the original DeerFlow 1.0, we would love to give the community a minimalistic and easy-to-use web interface with a more modern and flexible architecture.
Tech Stack
- Framework: Next.js 16 with App Router
- UI: React 19, Tailwind CSS 4, Shadcn UI, MagicUI and React Bits
- AI Integration: LangGraph SDK and Vercel AI Elements
Quick Start
Prerequisites
- Node.js 22+
- pnpm 10.26.2+
Installation
# Install dependencies
pnpm install
# Copy environment variables
cp .env.example .env
# Edit .env with your configuration
Development
# Start development server
pnpm dev
# The app will be available at http://localhost:3000
Build & Test
# Type check
pnpm typecheck
# Check formatting
pnpm format
# Apply formatting
pnpm format:write
# Lint
pnpm lint
# Run unit tests
pnpm test
# One-time setup: install Playwright Chromium browser
pnpm exec playwright install chromium
# Run E2E tests (builds and starts production server automatically)
pnpm test:e2e
# Build for production
pnpm build
# Start production server
pnpm start
Site Map
├── / # Landing page
├── /chats # Chat list
├── /chats/new # New chat page
└── /chats/[thread_id] # A specific chat page
Configuration
Environment Variables
Key environment variables (see .env.example for full list):
# Backend API URLs (optional, uses nginx proxy by default)
NEXT_PUBLIC_BACKEND_BASE_URL="http://localhost:8001"
# LangGraph API URLs (optional, uses nginx proxy by default)
NEXT_PUBLIC_LANGGRAPH_BASE_URL="http://localhost:2024"
Project Structure
tests/
├── e2e/ # E2E tests (Playwright, Chromium, mocked backend)
└── unit/ # Unit tests (mirrors src/ layout)
src/
├── app/ # Next.js App Router pages
│ ├── api/ # API routes
│ ├── workspace/ # Main workspace pages
│ └── mock/ # Mock/demo pages
├── components/ # React components
│ ├── ui/ # Reusable UI components
│ ├── workspace/ # Workspace-specific components
│ ├── landing/ # Landing page components
│ └── ai-elements/ # AI-related UI elements
├── core/ # Core business logic
│ ├── api/ # API client & data fetching
│ ├── artifacts/ # Artifact management
│ ├── config/ # App configuration
│ ├── i18n/ # Internationalization
│ ├── mcp/ # MCP integration
│ ├── messages/ # Message handling
│ ├── models/ # Data models & types
│ ├── settings/ # User settings
│ ├── skills/ # Skills system
│ ├── threads/ # Thread management
│ ├── todos/ # Todo system
│ └── utils/ # Utility functions
├── hooks/ # Custom React hooks
├── lib/ # Shared libraries & utilities
├── server/ # Server-side code
│ └── better-auth/ # Authentication setup and session helpers
└── styles/ # Global styles
Scripts
| Command | Description |
|---|---|
pnpm dev |
Start development server with Turbopack |
pnpm build |
Build for production |
pnpm start |
Start production server |
pnpm test |
Run unit tests with Vitest |
pnpm test:e2e |
Run E2E tests with Playwright |
pnpm format |
Check formatting with Prettier |
pnpm format:write |
Apply formatting with Prettier |
pnpm lint |
Run ESLint |
pnpm lint:fix |
Fix ESLint issues |
pnpm typecheck |
Run TypeScript type checking |
pnpm check |
Run both lint and typecheck |
Development Notes
- Uses pnpm workspaces (see
packageManagerin package.json) - Turbopack enabled by default in development for faster builds
- Environment validation can be skipped with
SKIP_ENV_VALIDATION=1(useful for Docker) - Backend API URLs are optional; nginx proxy is used by default in development
License
MIT License. See LICENSE for details.